p-(2-Chlorophenyl)cinnamic acid → beta-(2'-Chloro-4-biphenylyl)propionic acid

Beteiligte Stoffe

Reaktionsschritte

A suspension of 100 g of p-(2-chlorophenyl)cinnamic acid in 1 l. of 95% ethanol is hydrogenated at atmospheric pressure using platinum oxide catalyst (1 g). The uptake of hydrogen ceases when approximately 9-10 l. of hydrogen is consumed. The catalyst is then filtered off and the reaction evaporated to dryness to give β-(2'-chloro-4-biphenylyl)propionic acid.

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